Bivalve Pearlfish
Onuxodon margaritiferae
- Usual depth2–39 m
- Water temperature26–30 °C
- Best monthsNovember
- How commonRare
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 0 records
- February: 0 records
- March: 3 records
- April: 1 records
- May: 1 records
- June: 4 records
- July: 2 records
- August: 1 records
- September: 1 records
- October: 2 records
- November: 7 records
- December: 3 records
Depth and water temperature
Depth
Mostly recorded at 2–39 m · Deepest record: 195 m
Water temperature
Recorded in surface water of 26–30 °C
Names and classification
- English
- Bivalve Pearlfish, Clam Pearlfish, Cucumber Pearlfish
Other scientific names: Fierasfer margaritiferae, Onuxodon margaritifer
Similar species
Fowler's pearlfishOnuxodon fowleri
- Oyster pearlfish
Onuxodon parvibrachium
- Star Pearlfish
Carapus mourlani
- Closefin Pearlfish
Echiodon anchipterus
- Messmate
Echiodon cryomargarites
- Messmate Fish
Echiodon rendahli
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Conservation status as published by GBIF (IUCN Red List).
- 89 open-data records from 1929 to 2012.
- Species data updated November 5, 2026.
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